I recently found Aerial and it's the best screensaver experience that I've ever had. I am surprised and amazed everytime that I return to my laptop and the screensever is on. Bonus if you got a retina screen.

Are you supposed to be able to tell what time it is from looking at the squiggles? Maybe it's got something to do with the number of sides to the primitive shape in the middle, or something to do with how many lines are marginally bolder than the others?

There are plenty of screensavers out there to try out but in this list, I'm only listing the ones I think looks fancy.
Well, every man/woman have their own preferences. I prefer clocks over fancy images as my screen savers. 😁